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The "moving wall" represents the time period between the last issue
available in JSTOR and the most recently published issue of a journal.
Moving walls are generally represented in years. In rare instances, a
publisher has elected to have a "zero" moving wall, so their current
issues are available in JSTOR shortly after publication.
Note: In calculating the moving wall, the current year is not counted.
For example, if the current year is 2008 and a journal has a 5 year
moving wall, articles from the year 2002 are available.

Terms Related to the Moving Wall

Fixed walls: Journals with no new volumes being added to the archive.

Absorbed: Journals that are combined with another title.

Complete: Journals that are no longer published or that have been
combined with another title.

Abstract

Eighteen pools, ponds, and lakes were sampled in the Cumberland Peninsula region, Baffin Island, in 1969 and 1975. One additional lake and four ponds were investigated in the Frobisher Bay region. Primary consideration was given to the crustacean fauna. Lepidurus arcticus was found in Broughton Island pond. Attention was given to morphological variation. In terms of numbers the ranges of certain characters equaled or exceeded the maxima of previous reports, e.g., number of abdominal legs and median telson spines, and the unusually high percentage of specimens with incomplete body rings preceding the telson. Branchinecta paludosa was collected from nine sites, including lakes, permanent ponds, and temporary pools. Egg sacs contained from 1 to 22 eggs. Hyalella azteca, the first record for the barren lands, was found in a lake near Frobisher Bay village. Daphnia pulex, collected at several locations, revealed certain characteristics which overlap those of Daphnia middendorffiana. Other cladocerans included Acroperus harpae, Chydorus sphaericus, Holopedium gibberum, and Alona guttata. The copepod Diaptomus minutus was the most common entomostracan. Certain genera or species of rotifers are discussed briefly. The species diversity of the plankton of ponds and lakes is compared with previously reported information. The only oribatid mite, collected at three sites in shore vegetation, was Platynothrus peltifer.